PNH — Oryza sativa Japonica

Summary

OsPNH (OS02G0831600) on rice chromosome 2 encodes a protein with Piwi and Argonaute domains, characteristic of the Argonaute family, and is annotated with siRNA and miRNA binding activities. The gene is associated with diverse biological processes including miRNA metabolism, long siRNA processing, gene silencing by miRNA-directed mRNA cleavage, temporal regulation of development, and somatic stem cell population maintenance. It has been linked to phenotypes such as erect growth, antiviral immunity, leaf polarity and morphology, auxin signaling, and TAS3 ta-siRNA biogenesis. Associations with agronomic traits include spikelet number, tiller angle, leaf shattering, amylose content, photosynthetic ability, and gibberellic acid content. Studies of related genes in other species connect the family to drought stress response, floral development, and shoot meristem organization.